ITEM NAME:3Pcs Hinge Mortising Bit, 8mm Shank, 3/4inch Cutting Diameter, 7/16inch Cutting Description: Hinge Mortising Router Bit will rout clean cutouts for hinges or other shallow cutout projects Shank bearing ideal for use with a hinge template Three flute car.Solid hardened steel body. SKU: DMO0014251319443785.